Air-cooled and water-cooled heat source system and unit

Abstract

The application discloses a kind of air-cooled water-cooled heat source system and unit, belong to air conditioning, heat pump and central air conditioning field.The existing air conditioner is mostly air-cooled air conditioning unit, and the air-cooled ratio of air conditioner in summer is lower than that of water-cooled unit.The application aims at improving the energy efficiency of air conditioning unit by air-cooled + water-cooled.The technical core is to add a water-cooled device outside the air inlet of the air-cooled unit, and the water-cooled and air-cooled share a fan;The water-cooled can pre-cool the air entering the air-cooled cooler, improving the energy efficiency of air conditioning unit;The cooling water can also be used through water-refrigerant heat exchanger;In winter, with solar energy, geothermal energy and waste heat, the heat exchanger can also be used to improve the energy efficiency of air conditioning heat pump unit;Air-cooled + water-cooled air conditioning system can be used in engineering, or can be used in existing air conditioning unit.

Description

Technical Field

[0001] This invention relates to an air-cooled and water-cooled cold and heat source system and unit, which is applied in the fields of air conditioning, heat pumps and central air conditioning; its purpose is to save energy in air conditioning and heat pump systems. Background Technology

[0002] Air-cooled units are the most common type of air conditioning, including central air conditioning and heat pump units. Large public buildings typically use water-cooled chiller central air conditioning systems with cooling towers. However, from an energy-saving perspective, air-cooled air conditioning is significantly less energy efficient than water-cooled systems in summer. While air-cooled systems are cheaper and easier to install, their economic and energy-saving performance over the entire lifespan of the air conditioner is inferior to water-cooled systems in summer. Water-cooling, however, cannot meet the heating needs of heat pumps in winter, making air-cooling often necessary for dual-purpose (heating and cooling) air conditioners (though ground-source heat pumps exist, but in relatively smaller proportions). Furthermore, air-cooled units are relatively simple to install and maintain, especially multi-split systems, making them the most prevalent in small and medium-sized projects. However, with societal development, energy conservation and emission reduction have become crucial tasks with higher social value. Therefore, improving the energy efficiency and professional operation and maintenance of air conditioning systems is becoming a trend, bringing significant energy savings, substantial reductions in air conditioning and heating costs, and reductions in carbon dioxide and pollutant emissions. In this context, using advanced technology for energy conservation and emission reduction will create a vast market opportunity in the air conditioning and heat pump sector.

[0003] The combined air-cooling and water-cooling system allows the air conditioning system to operate with high energy efficiency in both heating and cooling modes. Although it increases investment by a small amount, the investment payback period, overall economic efficiency, and energy savings are all justified. In winter, solar energy, geothermal energy, and industrial waste heat can be used to improve the energy efficiency of heating operations.

[0004] Currently, air-cooled + water-cooled composite systems are relatively rare in commonly used air conditioning systems, indicating a broad scope for development. Summary of the Invention

[0005] 1. An air-cooled or water-cooled heat source system and unit, comprising: an air conditioner or heat pump main unit (1-1), an outdoor air-cooled device (1-2), and a cooling water device (2); characterized in that, when the air conditioner or heat pump main unit (1-1) is cooling, the heat dissipation of the condenser is achieved through two devices: air cooling and water cooling, wherein water cooling is achieved by the cooling water device (2), and the air-cooled or water-cooled heat source system and unit further comprises at least one of the following technical features:

[0006] Technical feature one: One method of setting up the cooling water device (2) is to install it on the periphery of the air inlet surface of the surface cooler of the outdoor air-cooled device (1-2) of the air conditioner or heat pump host (1-1). The outdoor airflow first passes through the cooling water device (2) to cool down and then passes through the surface cooler of the outdoor air-cooled device (1-2). Another method of the cooling water device (2) is to use a water-cooled sidewall that includes at least the packing of the cooling tower, water supply, water collection and water blocking functions, to form a closed water-cooled wall outer wall along the periphery of the air inlet surface of the surface cooler of the outdoor air-cooled device (1-2). The closed water-cooled wall can be Leave a removable and enclosed plate to serve as a passage during maintenance, and seal the top and bottom except for the air vents to achieve pre-cooling of the air entering the air-cooled surface cooler by cooling water; the water-cooled and air-cooled share the same fan; the cooling water source is tap water, condensate from the indoor unit of the air conditioner, and at least one other water source; the cooling water of the cooling water device (2) may not participate in the heat exchange of the water-cooling medium in the heat exchanger (7) of the air conditioner or heat pump host (1-1), but only pre-cool the air in the air-cooled surface cooler on the periphery; the cooling water of the cooling water device (2) may also participate in the heat exchange of the water-cooling medium in the air conditioner or heat pump host (1-1) through the heat exchanger (7).

[0007] Technical feature two: the air conditioning or heat pump main unit (1-1) is a refrigeration unit or heat pump unit with a compressor (6), which can be a chiller unit, an air source heat pump unit, a chiller-hot water unit, a direct evaporation unit, or other types of main unit with an internal compressor (6); direct evaporation units include split air conditioners, multi-split units, unitary units, rooftop units, ducted units, and other types of evaporation units that directly cool indoor air with refrigerant; the air conditioning or heat pump main unit (1-1) contains at least one internal compressor (6), and the internal compressor (6) can be both a refrigeration compressor and a heat pump compressor; the compressor type can be a centrifugal compressor, screw compressor, scroll compressor, or other types of compressor. The centrifuge includes magnetic levitation centrifuge, air suspension centrifuge, variable frequency centrifuge and other types of centrifuge; the internal compressor (6) can also be two different types of compressors at the same time, one approach is that magnetic levitation centrifuge and air suspension centrifuge are present at the same time; the air conditioning terminal (8) can be a direct evaporation refrigerant terminal, or a hot and cold water circulation pump (9) and a water air conditioning terminal; the outdoor air-cooled device (1-2) is one approach that includes at least a surface cooler and a fan, and the refrigerant pipeline in the surface cooler is connected to the compressor of the air conditioning or heat pump host (1-1); the air conditioning or heat pump host (1-1) and the outdoor air-cooled device (1-2) can be integrated into a set of units, or they can be independent units.

[0008] 2. The air-cooled and water-cooled cold and heat source system and unit according to claim 1, characterized in that: the air conditioner or heat pump host (1-1), the outdoor air-cooled device (1-2), and the cooling water device (2) can be integrated into one unit.

[0009] 3. The air-cooled and water-cooled heat source system and unit according to claim 1 are further characterized in that: the cooling water device (2) may also include a cooling water sump (3), a cooling water pump (4) and a water tank (5) to circulate the cooling water.

[0010] 4. The air-cooled and water-cooled cold and heat source system and unit according to claim 1 are further characterized in that: the function of the heat exchanger (7) is the condenser or evaporator of the compressor (6), and the form can be a shell and tube heat exchanger, a plate heat exchanger, a surface cooler and other forms of heat exchangers. The heat exchanger (7) can be inside the air conditioner or heat pump host (1-1) or externally connected by pipelines.

[0011] 5. The air-cooled and water-cooled heat source system and unit according to claim 1 are further characterized in that: when other heat sources (10) are available in winter, the heat source (10) includes one or more of solar energy, geothermal energy, industrial waste heat, etc.; the heat source (10) is utilized by the air-cooled or heat pump unit (1-1) by setting a refrigerant direct evaporation pipeline in the heat source to exchange heat and utilize the external heat source (10); when the heat source (10) is hot water, the air-cooled or heat pump unit (1-1) uses the hot water of the heat source (10) by exchanging heat through a water-refrigerant heat exchanger (7); when the heat source (10) is hot water, the hot water can also be preheated by passing through a closed cooling water device (2) that operates in winter to preheat the air entering the air-cooled surface cooler, and one way to implement the closed cooling water device (2) is a water pipe surface cooler and a fan.

[0012] 6. The air-cooled and water-cooled heat source system and unit according to claim 1, characterized in that: a specific unit type of the air-cooled and water-cooled heat source system and unit is an air-cooled and water-cooled integrated heat pump unit, which integrates an air conditioner or heat pump host (1-1), an outdoor air-cooling device (1-2), and a cooling water device (2) into one unit; the air conditioner or heat pump host (1-1) is in the form of a heat pump, and a cooling water device (2) is provided on the periphery of the air inlet surface of the surface cooler of the outdoor air-cooling device (1-2) of the air conditioner or heat pump host (1-1), and is integrated in the outdoor unit of the air-cooled and water-cooled integrated heat pump unit, and the cooling water source of the cooling water device (2) is the indoor unit's cooling water. At least one of the following water sources: condensate, tap water, or other water sources; the cooling water device (2) includes a water-cooled sidewall consisting of cooling tower packing, water intake, water collection, and water blocking functions, and may also include a cooling water collection pan (3), a cooling water pump (4), and a water tank (5); the cooling water can exchange heat with the refrigerant of the unit through a water-cooling medium heat exchanger (7); at least one of the following can be utilized: solar energy, geothermal energy, industrial waste heat, etc., and in winter, the heat source (10) exchanges heat with the refrigerant in the evaporator of the unit through the water-cooling medium heat exchanger (7); one configuration of the compressor (6) in the unit is to set up one magnetic levitation centrifuge and one air levitation centrifuge.

[0013] 7. The air-cooled and water-cooled heat source system and unit according to claim 1, characterized in that: a specific unit type of the air-cooled and water-cooled heat source system and unit is an integrated direct evaporation unit, which integrates an air conditioning or heat pump host (1-1), an outdoor air-cooling device (1-2), and a cooling water device (2) into one unit; the air conditioning or heat pump host (1-1) is a direct evaporation type, and direct evaporation units include split air conditioners, multi-split units, unitary units, rooftop units, ducted units, and other forms of evaporation units that directly cool air with refrigerant; in the integrated direct evaporation unit, cooling water is provided around the air inlet surface of the surface cooler of the outdoor air-cooling device (1-2) of the air conditioning or heat pump host (1-1). The device (2) is integrated into the outdoor unit of the direct evaporation air conditioning unit. The cooling water source of the cooling water device (2) is at least one of the indoor unit condensate, tap water or other water sources. The cooling water device (2) of the air source heat pump unit includes a water cooling sidewall composed of cooling tower packing, water collection, water blocking function, etc. In addition to split air conditioners, it may also include a cooling water collection pan (3), a cooling water pump (4) and a water tank (5). The cooling water can exchange heat with the refrigerant of the unit through the water-refrigerant heat exchanger (7). When the heat source (10) has at least one of the following, such as solar energy, geothermal energy, industrial waste heat, etc., it can be used in winter. The heat source (10) can exchange heat with the refrigerant in the evaporator of the unit through the water-refrigerant heat exchanger (7).

[0014] 8. The air-cooled and water-cooled heat source system and unit according to claim 1, characterized in that: a specific unit type of the air-cooled and water-cooled heat source system and unit is an integrated air-cooled and water-cooled chiller unit, which integrates an air conditioning or heat pump host (1-1), an outdoor air-cooling device (1-2), and a cooling water device (2) into one unit; the air conditioning or heat pump host (1-1) is in the form of a chiller, and the cooling water device (2) is provided on the periphery of the air inlet surface of the surface cooler of the outdoor air-cooling device (1-2) of the air conditioning or heat pump host (1-1), and is integrated in the air-conditioned room of the chiller unit. The cooling water source of the outdoor unit cooling water device (2) is at least one of the indoor unit condensate, tap water or other water sources; the cooling water device (2) of the air conditioner or heat pump host (1-1) includes a water-cooled sidewall composed of cooling tower packing, water collection, water blocking function, and may also include a cooling water collection pan (3), a cooling water pump (4) and a water tank (5); the cooling water can exchange heat with the refrigerant of the unit through a water-refrigerant heat exchanger (7); one configuration of the compressor (6) in the unit is to set one magnetic levitation centrifuge and one air levitation centrifuge.

[0015] 9. The air-cooled and water-cooled cold and heat source system and unit according to claim 1, characterized in that: when there is one or more outdoor air-cooled devices (1-2) of the air conditioner or heat pump host (1-1), the cooling water device (2) can be arranged in a regular or irregular shape by one or more sets of cooling water devices (2) around the air inlet of the surface cooler of all outdoor air-cooled devices (1-2).

[0016] 10. The air-cooled and water-cooled heat source system and unit according to claim 1, characterized in that: the cooling water sidewall of the cooling water device (2) is made of at least packing, baffle plate and water blocking function, baffle plate is provided on both the inner and outer sides of the cooling water sidewall, and packing is in the middle; the baffle plate is an airtight panel, and the material can be aluminum-magnesium alloy, aluminum plate, aluminum-plastic plate, stainless steel, polymer material and other materials; an air inlet is provided at the bottom of the outer side plate, an air outlet is provided at the top of the inner side plate, and water blocking is provided at the air outlet. When the fan of the cooling water device (2) is started, the air first passes through the bottom air inlet of the outer side plate, then through the packing of the cooling water sidewall inside the cooling water sidewall, and then exits through the top air outlet of the inner side plate, and finally is discharged to the atmosphere through the fan of the cooling water device (2).

[0017] principle

[0018] The principles of this invention are as follows: 1. A water-cooling device is added to the air-cooled air conditioning unit, and the water-cooling device is linked with the air-cooling device. The water-cooling device is located outside the air-cooling device, allowing the air entering the air-cooling device to be pre-cooled, thereby enhancing the heat dissipation of the air-cooling unit. Furthermore, the water-cooling device does not require its own fan; the fan of the air-cooling device can be used, achieving shared fan operation for both water and air cooling, reducing power consumption. 2. For heat pump units, when solar energy, geothermal energy, or industrial waste heat can be utilized in winter, heat exchange can provide a high-temperature heat source for the heat pump unit, improving the energy efficiency of the heat pump system. 3. This invention can be an engineering system, an engineering modification, or an integrated unit. Attached Figure Description

[0019] Appendix Figure 1 A schematic diagram of a water-cooling device added to the air inlet of an outdoor air conditioning unit.

[0020] Appendix Figure 2 A schematic diagram illustrating the principle of precooling air entering the air-cooling unit for the water-cooling device of the outdoor unit of an air conditioner;

[0021] Appendix Figure 3 A schematic diagram illustrating the principle of water-cooled pre-cooling of air and water-cooled heat exchange of the outdoor unit of an air conditioner.

[0022] Appendix Figure 4This diagram illustrates the pre-cooling of air-cooled air by the water-cooling device for the outdoor unit of the air conditioner and the water-cooled heat exchange of the main unit, with the air-cooling unit and the main unit with compressor operating independently.

[0023] Figure labeling: 1-1-Air conditioner or heat pump main unit; 1-2-Air-cooled unit; 2-Cooling water unit; 3-Cooling water sump; 4-Cooling water pump; 5-Water tank; 6-Compressor; 7-Heat exchanger; 8-Air conditioning terminal; 9-Circulation pump; 10-Heat source Detailed Implementation

[0024] 1. For existing air-cooled chiller units and direct evaporation units in refrigeration mode, a cooling water device (2) is added to the outside of the surface cooler of the outdoor air-cooled device (1-2) of the unit to achieve air-cooling + water-cooling in summer;

[0025] 2. For existing air source heat pump units and direct evaporation units operating in both cooling and heating mode, a cooling water device (2) is added to the outside of the surface cooler of the outdoor air-cooled device (1-2) of the unit to achieve air cooling + water cooling in summer; in winter, if there are heat sources such as solar energy, geothermal energy, and industrial waste heat that can be used, a heat exchanger (7) is added to exchange heat with the refrigerant in the evaporator of the unit.

[0026] 3. Produce integrated units, such as: air-cooled and water-cooled integrated heat pump units, air-cooled and water-cooled integrated direct evaporation units, and air-cooled and water-cooled integrated chiller units.

Claims

1. Air-cooled and water-cooled heat and cold source systems and units, including: An air conditioner or heat pump main unit (1-1), an outdoor air-cooled device (1-2), and a cooling water device (2); characterized in that, when the air conditioner or heat pump main unit (1-1) is cooling, the heat dissipation of the condenser is achieved by two devices: air cooling and water cooling, wherein water cooling is achieved by the cooling water device (2), and the air-cooled and water-cooled heat source system and the unit also include at least one of the following technical features: Technical feature one: One method of setting up the cooling water device (2) is to install it on the periphery of the air inlet surface of the surface cooler of the outdoor air-cooled device (1-2) of the air conditioner or heat pump host (1-1). The outdoor airflow first passes through the cooling water device (2) to cool down and then passes through the surface cooler of the outdoor air-cooled device (1-2). Another method of the cooling water device (2) is to use a water-cooled sidewall that includes at least the packing of the cooling tower, water supply, water collection and water blocking functions, to form a closed water-cooled wall outer wall along the periphery of the air inlet surface of the surface cooler of the outdoor air-cooled device (1-2). The closed water-cooled wall can be Leave a removable and enclosed plate to serve as a passage during maintenance, and seal the top and bottom except for the air vents to achieve pre-cooling of the air entering the air-cooled surface cooler by cooling water; the water-cooled and air-cooled share the same fan; the cooling water source is tap water, condensate from the indoor unit of the air conditioner, and at least one other water source; the cooling water of the cooling water device (2) may not participate in the heat exchange of the water-cooling medium in the heat exchanger (7) of the air conditioner or heat pump host (1-1), but only pre-cool the air in the air-cooled surface cooler on the periphery; the cooling water of the cooling water device (2) may also participate in the heat exchange of the water-cooling medium in the air conditioner or heat pump host (1-1) through the heat exchanger (7). Technical feature two: the air conditioning or heat pump main unit (1-1) is a refrigeration unit or heat pump unit with a compressor (6), which can be a chiller unit, an air source heat pump unit, a chiller-hot water unit, a direct evaporation unit, or other types of main unit with an internal compressor (6); direct evaporation units include split air conditioners, multi-split units, unitary units, rooftop units, ducted units, and other types of evaporation units that directly cool indoor air with refrigerant; the air conditioning or heat pump main unit (1-1) contains at least one internal compressor (6), and the internal compressor (6) can be both a refrigeration compressor and a heat pump compressor; the compressor type can be a centrifugal compressor, screw compressor, scroll compressor, or other types of compressor. The centrifuge includes magnetic levitation centrifuge, air suspension centrifuge, variable frequency centrifuge and other types of centrifuge; the internal compressor (6) can also be two different types of compressors at the same time, one approach is that magnetic levitation centrifuge and air suspension centrifuge are present at the same time; the air conditioning terminal (8) can be a direct evaporation refrigerant terminal, or a hot and cold water circulation pump (9) and a water air conditioning terminal; the outdoor air-cooled device (1-2) is one approach that includes at least a surface cooler and a fan, and the refrigerant pipeline in the surface cooler is connected to the compressor of the air conditioning or heat pump host (1-1); the air conditioning or heat pump host (1-1) and the outdoor air-cooled device (1-2) can be integrated into a set of units, or they can be independent units.

2. The air-cooled and water-cooled cold and heat source system and unit according to claim 1, further characterized in that: An air conditioner or heat pump unit (1-1), an outdoor air-cooled unit (1-2), and a cooling water unit (2) can be integrated into one unit.

3. The air-cooled and water-cooled heat source system and unit according to claim 1, further characterized in that: The cooling water device (2) may also include a cooling water collection pan (3), a cooling water pump (4) and a water tank (5) to circulate the cooling water.

4. The air-cooled and water-cooled cold and heat source system and unit according to claim 1, further characterized in that: The function of the heat exchanger (7) is the condenser or evaporator of the compressor (6). It can be a shell-and-tube heat exchanger, a plate heat exchanger, a surface cooler, or other types of heat exchangers. The heat exchanger (7) can be inside the air conditioner or heat pump unit (1-1) or externally connected by pipelines.

5. The air-cooled and water-cooled cold and heat source system and unit according to claim 1, further characterized in that: When there are other heat sources (10) available in winter, the air conditioner or heat pump unit (1-1) may utilize the heat source (10) including one or more of solar energy, geothermal energy, industrial waste heat, etc. The heat source (10) can be utilized by the air conditioner or heat pump unit (1-1) by setting up a refrigerant direct evaporation pipeline in the heat source to exchange heat and utilize the external heat source (10). When the heat source (10) is hot water, the air conditioner or heat pump unit (1-1) can utilize the hot water of the heat source (10) by exchanging heat through a water-refrigerant heat exchanger (7). When the heat source (10) is hot water, the hot water can also be preheated by passing through a closed cooling water device (2) that operates in winter to preheat the air entering the air-cooled surface cooler. One way to use the closed cooling water device (2) is a water pipe surface cooler and a fan.

6. The air-cooled and water-cooled cold and heat source system and unit according to claim 1, further characterized in that: A specific type of air-cooled and water-cooled heat source system and unit is an air-cooled and water-cooled integrated heat pump unit, which integrates an air conditioner or heat pump host (1-1), an outdoor air-cooling device (1-2), and a cooling water device (2) into one unit; the air conditioner or heat pump host (1-1) is in the form of a heat pump unit, and a cooling water device (2) is installed on the periphery of the air inlet surface of the surface cooler of the outdoor air-cooling device (1-2) of the air conditioner or heat pump host (1-1), and integrated into the outdoor unit of the air-cooled and water-cooled integrated heat pump unit. The cooling water source of the cooling water device (2) is at least one of the indoor unit condensate, tap water, or other water sources. The cooling water device (2) includes a cooling tower packing, water supply, water collection and water blocking function forming a water cooling sidewall, and may also include a cooling water collection pan (3), a cooling water pump (4) and a water tank (5); the cooling water can exchange heat with the refrigerant of the unit through a water-cooling medium heat exchanger (7); at least one of the following can be used: solar energy, geothermal energy, industrial waste heat, etc. In winter, the heat source (10) exchanges heat with the refrigerant in the evaporator of the unit through the water-cooling medium heat exchanger (7); one configuration of the compressor (6) in the unit is to set up one magnetic levitation centrifuge and one air levitation centrifuge.

7. The air-cooled and water-cooled cold and heat source system and unit according to claim 1, further characterized in that: One specific type of air-cooled and water-cooled heat source system and unit is the air-cooled and water-cooled integrated direct evaporation unit, which integrates an air conditioning or heat pump host (1-1), an outdoor air-cooling device (1-2), and a cooling water device (2) into one unit; the air conditioning or heat pump host (1-1) is a direct evaporation type unit, including split air conditioners, multi-split units, unitary units, rooftop units, ducted units, and other forms of refrigerant-cooled direct air evaporation units; in the air-cooled and water-cooled integrated direct evaporation unit, the cooling water device (2) is installed around the air inlet surface of the surface cooler of the outdoor air-cooling device (1-2) of the air conditioning or heat pump host (1-1), and integrated into the direct evaporation unit. The cooling water source of the outdoor unit of the air conditioner is at least one of the indoor unit condensate, tap water or other water sources; the cooling water device (2) of the air source heat pump unit includes a water cooling sidewall composed of cooling tower packing, water collection, water blocking function, etc. In addition to split air conditioners, it may also include a cooling water collection pan (3), a cooling water pump (4) and a water tank (5); the cooling water can exchange heat with the refrigerant of the unit through the water-refrigerant heat exchanger (7); when the heat source (10) has at least one of the following available in winter: solar energy, geothermal energy, industrial waste heat, etc., the heat source (10) can exchange heat with the refrigerant in the evaporator of the unit through the water-refrigerant heat exchanger (7).

8. The air-cooled and water-cooled cold and heat source system and unit according to claim 1, further characterized in that: A specific type of air-cooled and water-cooled cold and heat source system and unit is an integrated air-cooled and water-cooled chiller unit, which integrates an air conditioning or heat pump host (1-1), an outdoor air-cooling device (1-2), and a cooling water device (2) into one unit; the air conditioning or heat pump host (1-1) is in the form of a chiller, and the cooling water device (2) is installed on the periphery of the air inlet surface of the surface cooler of the outdoor air-cooling device (1-2) of the air conditioning or heat pump host (1-1), and is integrated into the outdoor unit of the chiller unit. The cooling water of the cooling water device (2) comes from... The source is at least one of the indoor unit condensate, tap water or other water sources; the cooling water device (2) of the air conditioner or heat pump host (1-1) includes a water cooling sidewall composed of cooling tower packing, water supply, water collection and water blocking functions, and may also include a cooling water collection pan (3), a cooling water pump (4) and a water tank (5); the cooling water can exchange heat with the refrigerant of the unit through a water-refrigerant heat exchanger (7); one configuration of the compressor (6) in the unit is to set one magnetic levitation centrifuge and one air suspension centrifuge.

9. The air-cooled and water-cooled cold and heat source system and unit according to claim 1, further characterized in that: When there is one or more outdoor air-cooled units (1-2) of the air conditioner or heat pump unit (1-1), the cooling water unit (2) can be arranged in a regular or irregular shape around the air inlet of the surface cooler of all outdoor air-cooled units (1-2).

10. The air-cooled and water-cooled heat source system and unit according to claim 1, further characterized in that: One method for the cooling water sidewall of the cooling water device (2) is that the cooling water sidewall is composed of at least packing, baffles and water blocking functions. Baffles are set on both the inner and outer sides of the cooling water sidewall, and the packing is in the middle. The baffles are airtight panels, and the materials can be aluminum-magnesium alloy, aluminum plate, aluminum-plastic plate, stainless steel, polymer material and other materials. An air inlet is set at the bottom of the outer side plate, an air outlet is set at the top of the inner side plate, and a water blocking is set at the air outlet. When the fan of the cooling water device (2) is started, the air first passes through the bottom air inlet of the outer side plate, then through the packing inside the cooling water sidewall that sprays cooling water, and then out through the top air outlet of the inner side plate, and finally is discharged to the atmosphere through the fan of the cooling water device (2).

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